Wii comparisons: At 35 weeks, Wii is where GCN was at 128.5 weeks (February 25, 2004), where GBA was at 27.9 weeks (September 29, 2001), where DS was at 42.4 weeks (September 21, 2005), where PS2 was at 46.6 weeks (January 18, 2001), and where PSP was at 68.7 weeks (March 30, 2006).
PS3 comparisons: At 38 weeks, PS3 is where PS2 was at 4.3 weeks (March 28, 2000), where PSP was at 14.0 weeks (March 12, 2005), where GCN was at 16.7 weeks (January 3, 2002), and where Wii was at 5.5 weeks (January 3, 2001).
DS vs PSP: Weekly ratio of 81.1 / 18.9, bringing the total ratio to 76.3 / 23.7.
PS3 vs Wii: Weekly ratio of 27.2 / 72.8, PS3's best ratio since the week after Gundabump (41.9). This brings the total ratio to 24.0 / 76.0, a slight movement in PS3's favor. If Wii stopped selling and PS3 continued at this week's rate, it would catch up in 76.5 weeks (January 15, 2009).
PSP vs Wii: At this week's rates Wii catches up to PSP in 60.1 weeks (September 22, 2008).
PS2 vs DS: At this week's rates, PS2 and DS meet up in 14.9 weeks (November 10, 2007) at ~20.81 million apiece.